F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
103/117, 103/120
F04D 1/06 (2006.01)
Patent
CA 1066951
ABSTRACT OF THE DISCLOSURE CENTRIFUGAL PUMP The pump according to the invention will be used to advantage for handling liquids laden with abrasive particles. The seal of the shaft between the low- and high-pressure stages in this pump comprises at least two floating rings provided on the shaft in a circular gap between the shaft and casing and the casing has a circular collar at the side of the low-pressure stages, said collar covering partly the circular gap which is adjoined by the rings during pump operation. This design of the seal extends considerably the service life of the pump.
250750
Letov Nikolai N.
Rozhkov Vladimir P.
Sharapov Boris N.
Tatkov Viktor A.
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